CV1891 double diode pentode
 |
This valve measures 112x40mm overall and has a USS7 base |
| Heater voltage | 6.3V |
| Heater current | 300mA |
| Max anode voltage | 250V |
| Max screen voltage | 125V |
| Mutual conductance * | 1.1mA/V |
| Capacitances | |
| Cag max | 0.007pF |
| Cin | 3.6pF |
| Cout | 9.5pF |
*: At Va=250V, Vg2=100V, Vg1=-3V
| Pin | Function |
| 1 | Heater |
| 2 | Anode |
| 3 | Screen grid |
| 4 | Diode 2 |
| 5 | Diode 1 |
| 6 | Cathode |
| 7 | Heater |
| TC | Control grid |
